International Chemical Safety Cards SODIUM XYLENESULFONATE ICSC: 1514 Benzenesulfonic acid, dimethyl-, sodium salt Dimethylbenzenesulfonic acid, sodium salt C8H9NaO3S Molecular mass: 208.2 ICSC #    1514 CAS #     1300-72-7 RTECS # ZE5100000 April 21, 2004 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Gives off irritating or toxic fumes (or gases) in a fire. Powder, alcohol-resistant foam, water spray, carbon dioxide . EXPLOSION EXPOSURE  •INHALATION Cough. Sore throat. Local exhaust or breathing protection. Fresh air, rest.  •SKIN Redness. Protective gloves. Rinse skin with plenty of water or shower.  •EYES Redness. Safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Do not eat, drink, or smoke during work. Rinse mouth. Give plenty of water to drink. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. Separated from strong oxidants. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 1514 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards SODIUM XYLENESULFONATE ICSC: 1514 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE CRYSTALS OR POWDER PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on burning producing sulfur oxides . The solution in water is a weak base. Reacts with strong oxidants. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. ROUTES OF EXPOSURE: INHALATION RISK: A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. EFFECTS OF SHORT-TERM EXPOSURE: The substance is irritating to the eyes , the skin and the respiratory tract . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 157°C Melting point: 27°C Solubility in water, g/100 ml at 20°C: 40 Relative vapour density (air = 1): 6.45 ENVIRONMENTAL DATA N O T E S ADDITIONAL INFORMATION ICSC: 1514 SODIUM XYLENESULFONATE (C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.